Millionaire Tax Approved by Illinois Voters

Griffin then left Chicago for Miami in 2022, moving the headquarters of his Citadel empire there as well.

Companies from Caterpillar Inc. to Boeing Co. have also departed amid rising concerns over public safety, regulation and taxes.

This year’s referendum asked voters if the Illinois Constitution should be amended to create the additional tax on income over $1 million.

It called for using the proceeds to ease the state’s notoriously high property levies.

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